I’ve been running the Saami spec 27 nosler for over a year but I’m yet to put some 170’s through it,I found such a great load(1/2 moa)for the 150ablr that I will wait until they are finished,the last 3 shots off the magneto read 3342,3339 & 3339.Powder was AR2225,I think it’s the retumbo...